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Postnatal changes of gene expression for tissue inhibitors of metalloproteinase-1 and -2 and cystatins S and C, in rat submandibular gland demonstrated by quantitative reverse transcription-polymerase chain reaction

Identifieur interne : 003919 ( Main/Exploration ); précédent : 003918; suivant : 003920

Postnatal changes of gene expression for tissue inhibitors of metalloproteinase-1 and -2 and cystatins S and C, in rat submandibular gland demonstrated by quantitative reverse transcription-polymerase chain reaction

Auteurs : T. Nishiura [Japon] ; K. Abe [Japon]

Source :

RBID : ISTEX:74F0EFDC679AFAB1305B3D048189E7A6C3CBA827

English descriptors

Abstract

Abstract: The rat submandibular gland is not fully developed at birth and definitive differentiation takes place postnatally. The steady-state mRNA expression for the four proteinase inhibitor molecules, tissue inhibitors of metalloproteinase (TIMP)-1 and -2, and cystatins S and C, and for a housekeeping gene, glyceraldehyde-3-phosphate dehydrogenase (G3PDH), in rat submandibular glands was measured by quantitative competitive reverse transcription-polymerase chain reaction (RT-PCR) at different stages of postnatal development. The gene-expression patterns of TIMP-1 and -2 relative to G3PDH were similar to each other. The TIMP-2 and cystatin C genes were more highly expressed than those of TIMP-1 and cystatin S at all stages. Moreover, the gene expressions of TIMP-1 and -2, and of cystatins S and C, were predominant between 1 and 7, and 7 and 12 weeks of age, respectively, and coincided developmentally with the regression of terminal tubule cells and the differentiation of granular convoluted tubule cells, respectively. Quantitative competitive RT-PCR allowed accurate measurement of small changes in the steady-state concentrations of these proteinase-inhibitor mRNA molecules.

Url:
DOI: 10.1016/S0003-9969(98)00096-X


Affiliations:


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<term>Quantitative reverse transcription-polymerase chain reaction (RT-PCR)</term>
<term>RT-PCR, reverse transcription-polymerase chain reaction</term>
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<term>TIMP, tissue inhibitor of metalloproteinase</term>
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<term>dNTP, deoxynucleoside triphosphate</term>
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<term>Acinar cells</term>
<term>Band intensities</term>
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<term>Biol</term>
<term>Cdna</term>
<term>Cell growth</term>
<term>Chain reaction</term>
<term>Cleft formation</term>
<term>Collagenase</term>
<term>Competitor</term>
<term>Competitor construction</term>
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<term>Cystatins</term>
<term>Cysteine</term>
<term>Cysteine proteinases</term>
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<term>Proteinase</term>
<term>Proteinase inhibitors</term>
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<term>Submandibular gland</term>
<term>Submandibular glands</term>
<term>Submandibular saliva</term>
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<term>Tissue inhibitor</term>
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<div type="abstract" xml:lang="en">Abstract: The rat submandibular gland is not fully developed at birth and definitive differentiation takes place postnatally. The steady-state mRNA expression for the four proteinase inhibitor molecules, tissue inhibitors of metalloproteinase (TIMP)-1 and -2, and cystatins S and C, and for a housekeeping gene, glyceraldehyde-3-phosphate dehydrogenase (G3PDH), in rat submandibular glands was measured by quantitative competitive reverse transcription-polymerase chain reaction (RT-PCR) at different stages of postnatal development. The gene-expression patterns of TIMP-1 and -2 relative to G3PDH were similar to each other. The TIMP-2 and cystatin C genes were more highly expressed than those of TIMP-1 and cystatin S at all stages. Moreover, the gene expressions of TIMP-1 and -2, and of cystatins S and C, were predominant between 1 and 7, and 7 and 12 weeks of age, respectively, and coincided developmentally with the regression of terminal tubule cells and the differentiation of granular convoluted tubule cells, respectively. Quantitative competitive RT-PCR allowed accurate measurement of small changes in the steady-state concentrations of these proteinase-inhibitor mRNA molecules.</div>
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